Radioantenna



Dec, 27, 1927. 1,654,108

A. l. BLANC RADIO ANTENNA Filed March 19. 1925 perior to those heretofore employed in the arrangement of the protecting shield for preventing grounding and in the provision of a coiled conductor within the shellifor increasing the effectiveness of the antenna.

lVhat I claim as my invention is:

1. A radio antenna comprising a hollow metallic shell, a supporting member therefor, an electrical insulator mechanically connecting said supporting member to said shell, and a. metallic protecting shield secured to said shell and entirely surroundingIr said insulator forming an air chamber closed at the upper end and open at the lower end.

2. A radio antenna comprising a hollow metallic shell, a supporting mast, a ittinir secured to and depending from said shell, an insulating coupling connecting said fitting and said mast, and ay metallic bell shaped member secured to said hollow shell and surrounding said insulating coupling for protecting said coupling from the weather.

3. A radio antennae comprising a hollow metallic shell, a tubular fitting secured to and depending from sa-id shell, an insulating coupling secured to said fitting and provided with coupling members adapted for conn nection to said titting and to a suitable supg port, and a protecting shield secured to said shell and surrounding said insulating couy pling.

4. A radio antennae comprising a hollow metallic shell, a supporting mast, a tubular litting secured to and depending from said shell, an insulating block, coupling members secured to opposite faces ol said block tor connecting the litting and supporting mast respectively, and a metallic bell shaped member secured to said shell and completely surrounding said insulating block and protecting the same from the weather.

5. A radio antenna. comprising a hollow metallic shell, a supporting mast, a tubular fitting secured to and depending from said shell, a fiat insulating block, a coupling member having a base portion secured to one face or' said block and provided with :1 socket portion for receiving the end of the tubular fitting, a second coupling member secured to the opposite face of the insulating block and connecting the shell and block to the supporting mast, and a metallic protecting shield secured on said fitting between the lirst mentioned coupling member und the said shell and entirely surrounding the insulating block.

ln testimony whereof I alix my signature.

ADOLPH I. BLANC. 

